Man shot in western Sydney

A man has had emergency surgery in hospital after he was shot twice outside a block of units at Auburn in Sydney's west.

Police were called to Station Road in Auburn, where they found a man lying in a car park with gunshot wounds to his stomach and arm.

The man - who is believed to be in his twenties - was taken to hospital after he was found by emergency services.

Police say the crime scene has been secured, and officers have seized clothing for forensic examination.

Inspector Chris Hill says the investigation is in its early stages, but has not ruled out the possibility it may be linked to bikies.

"We're yet to be able to have a meaningful discussion with the victim to look at any of those leads, so obviously we can't say it was or it was not," he said.

"He was scooped up and taken to a waiting ambulance where he received some treatment and taken directly to Westmead Hospital for emergency surgery.

"Police established a crime scene which included a number of unit blocks along Station road. That continues while crime scene personnel examine a number of items of interest that have been located."

Inspector Hill says investigators will return to the crime scene later today and are hoping to talk to people who saw what happened.

"Police are asking for anybody that may know anything about the incident, that could have heard anything or seen something directly that occurred down near Station road at about 8:45pm last night to contact police and give us whatever information they can," he said.

"Because at this point in time the investigation is in its infancy and we'll need every lead that we can possibly get."

The city's west has been hit by a spate of shootings in recent months, while the nearby suburb of Merrylands has seen a number of drive-by shootings in the past year.